The purpose of this study is to see the effect of etravirine or TMC278 on how telaprevir is absorbed into the body and the effect of telaprevir on how etravirine or TMC278 are absorbed into the body when administered together.

Further study details as provided by Tibotec Pharmaceuticals, Ireland:

Primary Outcome Measures:

Bloodlevels of telaprevir following co-administration with ETR [ Time Frame: Over 8 hours on day 18 of treatment B. ]

Bloodlevels of telaprevir following co-administration with TMC278 [ Time Frame: Over 8 hours on day 18 of treatment B. ]

Bloodlevels of ETR following co-administration with telaprevir [ Time Frame: Over 12 hours on day 18 of treatment B. ]

Bloodlevels of TMC278 following co-administration with telaprevir [ Time Frame: Over 24 hours on day 18 of treatment D ]

Secondary Outcome Measures:

Number of participants with adverse events and the severity of adverse events [ Time Frame: Over approximately 11 weeks ]

Bloodlevels of ETR in function of variations of 2 genes (CYP2C9 and CYP2C19) [ Time Frame: 1 bloodsample on day 1 of treatment A. ]

Observed values and changes from baseline for abnormal values of laboratory results. [ Time Frame: Over approximately 11 weeks ]

Observed values and changes from baseline for electrocardiograms (interpretation of electrical activity of the heart) [ Time Frame: Over approximately 11 weeks ]

Evaluation of pulse and blood pressure values, based on changes from baseline and the percentage of participants with values beyond clinically important limits [ Time Frame: Over approximately 11 weeks ]

Physical examination findings and changes from baseline. [ Time Frame: Over approximately 11 weeks ]

ETR/telaprevir Treatment A: ETR 200 mg twice a day from Day 1 to Day 10 + a single dose in the morning on Day 11. Treatment B: telaprevir 750 mg every 8 hours from Day 1 to Day 17 + 2 doses (morning and afternoon) on Day 18 and ETR 200 mg twice a day from Day 8 to Day 17 + a single dose in the morning on Day 18.

Drug: ETR/telaprevir

Treatment A: ETR 200 mg twice a day from Day 1 to Day 10 + a single dose in the morning on Day 11. Treatment B: telaprevir 750 mg every 8 hours from Day 1 to Day 17 + 2 doses (morning and afternoon) on Day 18, and ETR 200 mg twice a day from Day 8 to Day 17 + a single dose in the morning on Day 18.

Experimental: 002

telaprevir/ETR Treatment A: ETR 200 mg twice a day from Day 1 to Day 10 + a single dose in the morning on Day 11. Treatment B: telaprevir 750 mg every 8 hours from Day 1 to Day 17 + 2 doses (morning and afternoon) on Day 18 and ETR 200 mg twice a day from Day 8 to Day 17 + a single dose in the morning on Day 18.

Drug: telaprevir/ETR

Treatment A: ETR 200 mg twice a day from Day 1 to Day 10 + a single dose in the morning on Day 11. Treatment B: telaprevir 750 mg every 8 hours from Day 1 to Day 17 + 2 doses (morning and afternoon) on Day 18, and ETR 200 mg twice a day from Day 8 to Day 17 + a single dose in the morning on Day 18.

Experimental: 003

TMC278/telaprevir Treatment C: TMC278 25 mg once day from Day 1 to Day 11. Treatment D: telaprevir 750 mg every 8 hours from Day 1 to Day 18 and TMC278 25 mg once daily from Day 8 to Day 18.

Drug: TMC278/telaprevir

Treatment C: TMC278 25 mg once day from Day 1 to Day 11. Treatment D: telaprevir 750 mg every 8 hours from Day 1 to Day 18, and TMC278 25 mg once daily from Day 8 to Day 18.

Experimental: 004

telaprevir/TMC278 Treatment C: TMC278 25 mg once day from Day 1 to Day 11. Treatment D: telaprevir 750 mg every 8 hours from Day 1 to Day 18 and TMC278 25 mg once daily from Day 8 to Day 18.

Drug: telaprevir/TMC278

Treatment C: TMC278 25 mg once day from Day 1 to Day 11. Treatment D: telaprevir 750 mg every 8 hours from Day 1 to Day 18, and TMC278 25 mg once daily from Day 8 to Day 18.

Detailed Description:

This is an open-label, randomized, single-dose, crossover trial in healthy volunteers. Crossover means that participants may receive different interventions sequentially during the trial. Randomized means that you will be assigned to a treatment sequence by chance, like flipping a coin. Open-label means that you and your physician will know what treatment you will receive. The study will consist of 3 phases: a screening phase, a treatment phase and a follow-up phase. Total study duration for an individual participant will be approximately 11 weeks. Once found eligible after the screening phase, participants will take part in one of the two parts of the treatment phase. In the first part, a group of 16 participants will receive two treatment sessions, A and B. The order in which the treatments are given will be determined by chance. In treatment A, 200 mg (2 tablets) ETR (etravirine) will be given twice a day from day 1 to 10 with a morning dose only on day 11. In treatment B, 750 mg (2 tablets) TVR (telaprevir) will be given from day 1 to 17 every 8 hours with a morning and afternoon dose only on day 18 and 200 mg ETR will be given twice a day from day 8 to 17 with a morning dose on day 18. In between the 2 sessions, there will be at least 14 days. In the second part, another group of 16 participants will receive 2 treatment sessions, C and D. The order in which these treatments are given will be determined by chance. In treatment C, 25 mg (1 tablet) TMC278 will be given once a day from day 1 to 11. In treatment D, 750 mg (2 tablets) TVR (telaprevir) will be given from day 1 to 18 every 8 hours and 25 mg TMC278 will be given once a day from day 8 to 18. In between the 2 sessions, there will be at least 14 days. All treatments will be taken food. In treatments A and C, participants will come to the unit the day before dosing and in the mornings of day 1, 9 and 10 and for a whole day on day 11. Only in treatment C, overnight stay from day 11 to day 12 is foreseen. In treatment B, participants will come to the unit the day before dosing and in the mornings of days 1, 5, 6, 8, 16 and 17 and for a whole day on days 7 and 18. In treatment D, participants will come to the unit the day before dosing and in the mornings of days 1, 5, 6, 8, 12, 16 and 17 and for a whole day on days 7 and 18 with overnight stay from day 18 to 19. Five to 7 days after last dosing, participants will have a last follow-up visit at the unit (follow-up phase). During the study, safety will be monitored, and during the treatment phase, at specified timepoints, blood samples will be taken for pharmacokinetic evalutions (effect of the body on the drugs). In treatment A, 2 tablets ETR will be given twice a day from day 1 to 10 with a morning dose on day 11. In treatment B, 2 tablets TVR will be given every 8 hours from day 1 to17 with only 2 doses on day 18 and 2 tablets ETR twice a day from day 8 to 17 with a morning dose only on day 18. In treatment C, 1 tablet TMC278 will be given oncy a day from day 1 to 11. In treatment D, 2 tablets of TVR will be given every 8 hours from day 1 to 18 and 1 tablet TMC278 once a day from day 8 to 18.

Eligibility

Ages Eligible for Study:

18 Years to 55 Years (Adult)

Sexes Eligible for Study:

All

Accepts Healthy Volunteers:

Yes

Criteria

Inclusion Criteria:

Non-smoking or smoking no more than 10 cigarettes, or 2 cigars, or 2 pipes per day for at least 3 months prior to selection

A Body Mass Index (BMI, weight in kg divided by the square of height in meters) of 18.5 to 30.0 kg/m2

Healthy on the basis of physical examination, medical history, vital signs, electrocardiogram and clinical laboratory tests performed at Screening

Women must be postmenopausal for at least 2 years or be surgically sterile or be not heterosexually active for the duration of the study, or have a vasectomized partner, or if of childbearing potential and heterosexually active, be practicing a highly effective method of birth control.

Exclusion Criteria:

History or evidence of current use of alcohol, barbiturate, amphetamine, recreational or narcotic drug use, which in the investigator's opinion would compromise the participant's safety and/or compliance with the study procedures

Received an investigational drug or used an investigational medical device within 60 days preceding the first intake of study medication or having previously participated in a study with either ETR, TMC278, telaprevir.

Contacts and Locations

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To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below.
For general information, see Learn About Clinical Studies.

Please refer to this study by its ClinicalTrials.gov identifier: NCT01336829